Thanks. These are not tubeless, the specs say PSI should be 45-90. I'd been running 75 on road and Rail Trails, so it seems from what you're all saying that I should go down to maybe 45 front and 50 rear for everything?
For Rail Trails and even pavement, what would be the disadvantage of keeping the pressure there?
Are pinch flats an issue?
Are pinch flats an issue?
I find this question very odd. First off every tire has a recommended range of useful pressure. Let's say we are talking about a 650 x 48. This could be 35-55 psi. OK, then what do you and the gear on the bike weigh? How aggressive is your speed and skill set? Then what are the average or in some cases the most technical surfaces you will encounter like? Now taking all that into account EXPERIMENT with what works best for you! There are just so many variables that anyone else's preferences really don't mean much.
the thing is there is literally way to measure this stuff and some people have actually done so. Fast rolling will always be faster rolling for a given rim width, tire, and rider weight. The only way the rider comes into is if they are rolling the tire of the rim of having rim strikes. A gravel bike not a big issue except in rough terrain, on a cross bike can be an issue, and on MTB even on XC mtb people are using VERY low pressure with tire insert that prevent them from bottoming out.
The 150lb winner of the BC bike race, ran 17 psi front and rear in his bike with Pepe Tire inserts. said he could roll though all the roots faster.